Patents by Inventor Amy Ding

Amy Ding has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATION OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20260053749
    Abstract: The invention provides an oral solid formulation comprising (a) a plurality of controlled release components comprising (i) a core comprising a mixture of levodopa and at least one pharmaceutically acceptable excipient, (ii) a controlled release coating surrounding the core, (iii) a muco-adhesive coating surrounding the controlled release coating and (iv) an enteric coating surrounding the muco-adhesive coating; and (b) one or more immediate release components comprising levodopa.
    Type: Application
    Filed: October 31, 2025
    Publication date: February 26, 2026
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulation of levodopa and/or esters of levodopa and uses thereof
    Patent number: 12491164
    Abstract: The invention provides an oral solid formulation comprising (a) a plurality of controlled release components comprising (i) a core comprising a mixture of levodopa and at least one pharmaceutically acceptable excipient, (ii) a controlled release coating surrounding the core, (iii) a muco-adhesive coating surrounding the controlled release coating and (iv) an enteric coating surrounding the muco-adhesive coating; and (b) one or more immediate release components comprising levodopa. The oral solid formulation also contains carbidopa and about 80% to 100% of the carbidopa in the oral solid formulation is present in the one or more immediate release components.
    Type: Grant
    Filed: June 26, 2025
    Date of Patent: December 9, 2025
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATION OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20250319033
    Abstract: The invention provides an oral solid formulation comprising (a) a plurality of controlled release components comprising (i) a core comprising a mixture of levodopa and at least one pharmaceutically acceptable excipient, (ii) a controlled release coating surrounding the core, (iii) a muco-adhesive coating surrounding the controlled release coating and (iv) an enteric coating surrounding the muco-adhesive coating; and (b) one or more immediate release components comprising levodopa. The oral solid formulation also contains carbidopa and about 80% to 100% of the carbidopa in the oral solid formulation is present in the one or more immediate release components.
    Type: Application
    Filed: June 26, 2025
    Publication date: October 16, 2025
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulation of levodopa and/or esters of levodopa and uses thereof
    Patent number: 12403099
    Abstract: The invention provides an oral solid formulation comprising (a) one or more controlled release components comprising a core comprising levodopa, esters or salts thereof and wherein the one or more controlled release components; and (b) one or more immediate release components comprising levodopa, esters or salts thereof. The oral solid formulation also contains a decarboxylase inhibitor and about 80% to 100% of the decarboxylase inhibitor present in the oral solid formulation is present in the one or more immediate release components.
    Type: Grant
    Filed: December 30, 2024
    Date of Patent: September 2, 2025
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATION OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20250134818
    Abstract: The invention provides an oral solid formulation comprising (a) one or more controlled release components comprising a core comprising levodopa, esters or salts thereof and wherein the one or more controlled release components; and (b) one or more immediate release components comprising levodopa, esters or salts thereof. The oral solid formulation also contains a decarboxylase inhibitor and about 80% to 100% of the decarboxylase inhibitor present in the oral solid formulation is present in the one or more immediate release components.
    Type: Application
    Filed: December 30, 2024
    Publication date: May 1, 2025
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulation of levodopa and/or esters of levodopa and uses thereof
    Patent number: 12274793
    Abstract: The invention provides an oral solid formulation comprising (a) one or more controlled release components comprising a core comprising levodopa, esters or salts thereof and wherein the one or more controlled release components; and (b) one or more immediate release components comprising levodopa, esters or salts thereof. The oral solid formulation also contains a decarboxylase inhibitor and about 80% to 100% of the decarboxylase inhibitor present in the oral solid formulation is present in the one or more immediate release components.
    Type: Grant
    Filed: October 10, 2024
    Date of Patent: April 15, 2025
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATION OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20250099389
    Abstract: The invention provides an oral solid formulation comprising (a) one or more controlled release components comprising a core comprising levodopa; and (b) one or more immediate release components comprising levodopa. The oral solid formulation also contains a decarboxylase inhibitor wherein the one or more controlled release components are substantially free of the decarboxylase inhibitor.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulation of levodopa and/or esters of levodopa and uses thereof
    Patent number: 12178919
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a muco-adhesive coating and the muco-adhesive coating is externally coated with an enteric coating; and (b) an immediate release component comprising levodopa. The invention further provides a method for making and using the oral solid formulation.
    Type: Grant
    Filed: August 1, 2024
    Date of Patent: December 31, 2024
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof
    Patent number: 12178918
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a muco-adhesive coating and the muco-adhesive coating is externally coated with an enteric coating; and (b) an immediate release component comprising levodopa. The invention further provides a method for making and using the oral solid formulation.
    Type: Grant
    Filed: June 26, 2024
    Date of Patent: December 31, 2024
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATION OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20240398713
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a muco-adhesive coating and the muco-adhesive coating is externally coated with an enteric coating; and (b) an immediate release component comprising levodopa. The invention further provides a method for making and using the oral solid formulation.
    Type: Application
    Filed: August 1, 2024
    Publication date: December 5, 2024
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulation of levodopa and/or esters of levodopa and uses thereof
    Patent number: 12128141
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a muco-adhesive coating and the muco-adhesive coating is externally coated with an enteric coating; and (b) an immediate release component comprising levodopa. The invention further provides a method for making and using the oral solid formulation.
    Type: Grant
    Filed: July 31, 2024
    Date of Patent: October 29, 2024
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATIONS OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20240350417
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a muco-adhesive coating and the muco-adhesive coating is externally coated with an enteric coating; and (b) an immediate release component comprising levodopa. The invention further provides a method for making and using the oral solid formulation.
    Type: Application
    Filed: June 26, 2024
    Publication date: October 24, 2024
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof
    Patent number: 12064521
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric polymer; and (b) an immediate release component comprising levodopa.
    Type: Grant
    Filed: April 6, 2023
    Date of Patent: August 20, 2024
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATIONS OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20230301923
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric polymer; and (b) an immediate release component comprising levodopa.
    Type: Application
    Filed: April 6, 2023
    Publication date: September 28, 2023
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof
    Patent number: 11666538
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric polymer; and (b) an immediate release component comprising carbidopa and levodopa.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: June 6, 2023
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof
    Patent number: 11622941
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric polymer; and (b) an immediate release component comprising carbidopa and levodopa.
    Type: Grant
    Filed: July 10, 2021
    Date of Patent: April 11, 2023
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATIONS OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20230092422
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric polymer; and (b) an immediate release component comprising carbidopa and levodopa.
    Type: Application
    Filed: October 4, 2022
    Publication date: March 23, 2023
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof
    Patent number: 11357733
    Abstract: The invention provides a controlled release oral solid formulation comprising (a) a controlled release component comprising core comprising levodopa and/or an ester of levodopa or salts thereof, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric coated polymer; and (b) a decarboxylase inhibitor component.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: June 14, 2022
    Assignee: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATIONS OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20210338591
    Abstract: The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric polymer; and (b) an immediate release component comprising carbidopa and levodopa.
    Type: Application
    Filed: July 10, 2021
    Publication date: November 4, 2021
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
  • MUCO-ADHESIVE, CONTROLLED RELEASE FORMULATIONS OF LEVODOPA AND/OR ESTERS OF LEVODOPA AND USES THEREOF
    Publication number: 20210128480
    Abstract: The invention provides a controlled release oral solid formulation comprising (a) a controlled release component comprising core comprising levodopa and/or an ester of levodopa or salts thereof, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric coated polymer; and (b) a decarboxylase inhibitor component.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Applicant: Impax Laboratories, LLC
    Inventors: Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta